Trait DigestExt 

trait DigestExt: Sized {
    // Required methods
    fn chain_varlen(self, bytes: &[u8]) -> Self;
    fn chain_opt(self, bytes: Option<&[u8]>) -> Self;
    fn chain_ct(self, ct: &CiphertextBytes) -> Self;
    fn chain_vk(self, vk: &VerifyingKeyBytes) -> Self;
}

Extension methods on sha2::Sha256 used by Inner::sha256 to give the constellation an unambiguous byte encoding before hashing.

Required Methods

fn chain_varlen(self, bytes: &[u8]) -> Self

Length-prefix (8-byte big-endian, platform-independent) a variable-length field.

fn chain_opt(self, bytes: Option<&[u8]>) -> Self

A 1/0 presence byte, followed by the length-prefixed bytes when present.

fn chain_ct(self, ct: &CiphertextBytes) -> Self

Both length-prefixed ciphertext halves (ML-KEM ‖ EC).

fn chain_vk(self, vk: &VerifyingKeyBytes) -> Self

Both length-prefixed halves (ed25519 ‖ ML-DSA) of a hybrid verifying key.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl DigestExt for Sha256

fn chain_varlen(self, bytes: &[u8]) -> Self

fn chain_opt(self, bytes: Option<&[u8]>) -> Self

fn chain_ct(self, ct: &CiphertextBytes) -> Self

fn chain_vk(self, vk: &VerifyingKeyBytes) -> Self

Implementors